<!-- extends表明此页面继承自 base.html 文件 -->
{% extends "base.html" %}
{% load staticfiles %}

<!-- 写入 base.html 中定义的 title -->
{% block title %}
首页
{% endblock title %}

<!-- 写入 base.html 中定义的 content,预留的位置，方位的问题 -->
{% block content %}

<!-- 定义放置文章标题的div容器 -->
<div class="container">
    <nav aria-label="breadcrumb">
        <ol class="breadcrumb">
            <li class="breadcrumb-item">
                <a href="{% url 'article:article_list' %}?search={{ search }}">
<!--                <a href="{% url 'article:article_list' %}">-->
                    最新
                </a>
            </li>
            <li class="breadcrumb-item">
                 <a href="{% url 'article:article_list' %}?order=total_views&search={{ search }}">
<!--                <a href="{% url 'article:article_list' %}?order=total_views">-->
                    最热
                </a>
            </li>
        </ol>
    </nav>

    <!-- 新增，搜索栏 -->
    <div class="row">
        <div class="col-auto mr-auto">
            <form class="form-inline" >
                <label class="sr-only">content</label>
                <input type="text"
                    class="form-control mb-2 mr-sm-2"
                    name="search"
                    placeholder="搜索文章..."
                    required
                >
            </form>
        </div>
    </div>


    <!-- 新增，搜索提示语 -->
    {% if search %}
        {% if articles %}
            <h4><span style="color: red">"{{ search }}"</span>的搜索结果如下：</h4>
            <hr>
        {% else %}
            <h4>暂无<span style="color: red">"{{ search }}"</span>有关的文章。</h4>
            <hr>
        {% endif %}
    {% endif %}

    <div class="row mt-2">
        <!--context = {'articles': articles}，从view中传过来的实体类-->
        {% for article in articles %}
        <!-- 文章内容 -->
        <div class="col-4 mb-4">
            <!-- 卡片容器 -->
            <div class="card h-100">
                <!-- 标题 -->
                <h4 class="card-header">{{ article.title }}</h4>
                <!-- 摘要 ，只能摘要出前面的100字-->
                <div class="card-body">
                    <p class="card-text">{{ article.body|slice:'100' }}...</p>
                </div>
                <!-- 注脚 -->
                <div class="card-footer">
                    <!--                    <a href="#" class="btn btn-primary">阅读本文</a>-->
                    <a href="{% url 'article:article_detail' article.id %}" class="btn btn-primary">阅读本文</a>
                    <!-- 显示浏览量 -->
                    <span>
                          <small class="col align-self-end" style="color: gray;">浏览: {{ article.total_views }}  </small>
                   </span>
                </div>
            </div>
        </div>
        {% endfor %}
    </div>


    <!-- 页码导航 -->
    <div class="pagination row">
        <div class="m-auto">
        <span class="step-links">
            <!-- 如果不是第一页，则显示上翻按钮 -->
            {% if articles.has_previous %}
                <a href="?page=1" class="btn btn-success">
<!--                    &laquo; 1-->
                    <a href="?page=1&order={{ order }}&search={{ search }}" class="btn btn-success">&laquo; 1</a>
                </a>
                <span>...</span>
            <!--                <a href="?page={{ articles.previous_page_number }}"-->
            <!--                   class="btn btn-secondary"-->
            <!--                >-->
            <!--                    {{ articles.previous_page_number }}-->
            <!--                </a>-->
            <a href="?page={{ articles.previous_page_number }}&order={{ order }}&search={{ search }}"
               class="btn btn-secondary">{{ articles.previous_page_number }}</a>
            {% endif %}

            <!-- 当前页面 -->
            <span class="current btn btn-danger btn-lg">
                {{ articles.number }}
            </span>

            <!-- 如果不是最末页，则显示下翻按钮 -->
            {% if articles.has_next %}
            <!--                <a href="?page={{ articles.next_page_number }}"-->
            <!--                   class="btn btn-secondary">-->
            <!--                    {{ articles.next_page_number }}-->
            <!--                </a>-->
            <a href="?page={{ articles.next_page_number }}&order={{ order }}&search={{ search }}"
               class="btn btn-secondary">{{ articles.next_page_number }}</a>
                <span>...</span>
            <a href="?page={{ articles.paginator.num_pages }}&order={{ order }}&search={{ search }}"
               class="btn btn-success">{{ articles.paginator.num_pages }} &raquo;</a>
            {% endif %}
            <!--                <a href="?page={{ articles.paginator.num_pages }}"-->
            <!--                   class="btn btn-success"-->
            <!--                >-->
            <!--&lt;!&ndash;                    {{ articles.paginator.num_pages }} &raquo;&ndash;&gt;-->
            <!--                </a>-->
        </span>
        </div>
    </div>
</div>
{% endblock content %}
